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WO2003041199A3 - Plaques de champ d'ecoulement du fluide pour des cellules electrochimiques - Google Patents

Plaques de champ d'ecoulement du fluide pour des cellules electrochimiques Download PDF

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Publication number
WO2003041199A3
WO2003041199A3 PCT/GB2002/004483 GB0204483W WO03041199A3 WO 2003041199 A3 WO2003041199 A3 WO 2003041199A3 GB 0204483 W GB0204483 W GB 0204483W WO 03041199 A3 WO03041199 A3 WO 03041199A3
Authority
WO
WIPO (PCT)
Prior art keywords
fluid flow
channel
sheet
pattern
fuel cell
Prior art date
Application number
PCT/GB2002/004483
Other languages
English (en)
Other versions
WO2003041199A2 (fr
Inventor
Peter David Hood
Philip John Mitchell
Paul Leonard Adcock
Simon Edward Foster
Original Assignee
Intelligent Energy Ltd
Peter David Hood
Philip John Mitchell
Paul Leonard Adcock
Simon Edward Foster
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intelligent Energy Ltd, Peter David Hood, Philip John Mitchell, Paul Leonard Adcock, Simon Edward Foster filed Critical Intelligent Energy Ltd
Priority to CA2471122A priority Critical patent/CA2471122C/fr
Priority to MXPA04004279A priority patent/MXPA04004279A/es
Priority to EP02765083.7A priority patent/EP1442491B1/fr
Priority to JP2003543127A priority patent/JP4700910B2/ja
Priority to US10/494,628 priority patent/US8304139B2/en
Priority to BR0206313-1A priority patent/BR0206313A/pt
Publication of WO2003041199A2 publication Critical patent/WO2003041199A2/fr
Priority to NO20033090A priority patent/NO333667B1/no
Publication of WO2003041199A3 publication Critical patent/WO2003041199A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H01M8/0265—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant the reactant or coolant channels having varying cross sections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/2483—Details of groupings of fuel cells characterised by internal manifolds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

Une plaque de champ d'écoulement du fluide bipolaire destinée à une cellule électrochimique apporte du combustible à une électrode d'anode poreuse et un oxydant à une électrode de cathode poreuse adjacente. La plaque de champ d'écoulement comprend une feuille non poreuse, conduisant l'électricité, dans laquelle sont formés des passages d'écoulement pour le fluide. Un premier canal d'écoulement pour le fluide est gravé dans une première face de la feuille et un deuxième canal d'écoulement pour le fluide est gravé dans la face opposée de la feuille. Le motif du premier canal comprend un peigne interdigité qui coopère avec un motif du deuxième canal comprenant un chemin ondulé, de sorte qu'aucune partie du premier canal ne recouvre directement le motif du deuxième passage au-dessus d'une zone sensiblement active de la feuille. Ceci permet de former les canaux avec des profondeurs différentes qui dépassent l'épaisseur totale de la plaque, et d'accroître ainsi les volumes d'écoulement pour le fluide.
PCT/GB2002/004483 2001-11-07 2002-10-03 Plaques de champ d'ecoulement du fluide pour des cellules electrochimiques WO2003041199A2 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA2471122A CA2471122C (fr) 2001-11-07 2002-10-03 Plaques de champ d'ecoulement du fluide pour des cellules electrochimiques
MXPA04004279A MXPA04004279A (es) 2001-11-07 2002-10-03 Placas de campo de flujo de fluido para celulas energeticas.
EP02765083.7A EP1442491B1 (fr) 2001-11-07 2002-10-03 Plaques de champ d'ecoulement du fluide pour des cellules electrochimiques
JP2003543127A JP4700910B2 (ja) 2001-11-07 2002-10-03 燃料電池の流れ場プレート
US10/494,628 US8304139B2 (en) 2001-11-07 2002-10-03 Fuel cell fluid flow field plates
BR0206313-1A BR0206313A (pt) 2001-11-07 2002-10-03 Placa de campo de fluxo de fluìdo bipolar para uma célula de combustìvel
NO20033090A NO333667B1 (no) 2001-11-07 2003-07-07 Stromningsplater for brenselcelle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0126688.1 2001-11-07
GB0126688A GB2382455B (en) 2001-11-07 2001-11-07 Fuel cell fluid flow field plates

Publications (2)

Publication Number Publication Date
WO2003041199A2 WO2003041199A2 (fr) 2003-05-15
WO2003041199A3 true WO2003041199A3 (fr) 2003-11-27

Family

ID=9925290

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/004483 WO2003041199A2 (fr) 2001-11-07 2002-10-03 Plaques de champ d'ecoulement du fluide pour des cellules electrochimiques

Country Status (11)

Country Link
US (1) US8304139B2 (fr)
EP (1) EP1442491B1 (fr)
JP (1) JP4700910B2 (fr)
BR (1) BR0206313A (fr)
CA (1) CA2471122C (fr)
GB (1) GB2382455B (fr)
MX (1) MXPA04004279A (fr)
NO (1) NO333667B1 (fr)
RU (1) RU2302689C2 (fr)
WO (1) WO2003041199A2 (fr)
ZA (1) ZA200304912B (fr)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2412784B (en) * 2002-01-18 2006-08-23 Intelligent Energy Ltd Fuel cell oxygen removal and pre-conditioning system
GB2390738B (en) * 2002-07-09 2005-05-11 Intelligent Energy Ltd Fuel cell direct water injection
GB2401986B (en) * 2003-05-17 2005-11-09 Intelligent Energy Ltd Improvements in fuel utilisation in electrochemical fuel cells
GB2409763B (en) 2003-12-31 2007-01-17 Intelligent Energy Ltd Water management in fuel cells
GB2413002B (en) * 2004-04-08 2006-12-06 Intelligent Energy Ltd Fuel cell gas distribution
WO2005117177A1 (fr) * 2004-05-31 2005-12-08 Toyota Jidosha Kabushiki Kaisha Cellule électrochimique
KR100647666B1 (ko) * 2004-11-29 2006-11-23 삼성에스디아이 주식회사 바이폴라 플레이트 및 직접액체연료전지 스택
GB2422716B (en) * 2005-01-26 2007-08-22 Intelligent Energy Ltd Multi-layer fuel cell diffuser
KR100627373B1 (ko) * 2005-04-08 2006-09-22 삼성에스디아이 주식회사 연료 전지용 스택
KR100722093B1 (ko) * 2005-10-19 2007-05-25 삼성에스디아이 주식회사 연료전지용 막전극 어셈블리, 이의 제작방법, 및 이를채용한 연료전지 시스템
GB2434845B (en) * 2006-02-01 2010-10-13 Intelligent Energy Ltd Variable compressibility gaskets
WO2007148761A1 (fr) * 2006-06-21 2007-12-27 Panasonic Corporation Pile à combustible
DE102007062033A1 (de) 2007-12-21 2009-06-25 Robert Bosch Gmbh Brennstoffzelle, Strömungsfeldplatte und Verfahren zur Herstellung einer Strömungsfeldplatte
WO2009102768A2 (fr) * 2008-02-12 2009-08-20 Nova Scientific, Inc. Détection de neutron
RU2382443C1 (ru) * 2008-08-18 2010-02-20 Общество с ограниченной ответственностью "Национальная инновационная компания "Новые энергетические проекты" (ООО "Национальная инновационная компания "НЭП") Электрод топливного элемента
US8986905B2 (en) * 2008-11-11 2015-03-24 Bloom Energy Corporation Fuel cell interconnect
CN102341945B (zh) * 2009-03-04 2015-01-21 松下电器产业株式会社 燃料电池用隔板以及具备其的燃料电池
US8568941B2 (en) 2009-03-04 2013-10-29 Panasonic Corporation Fuel cell separator and fuel cell including same
US8916313B2 (en) * 2009-07-16 2014-12-23 Ford Motor Company Fuel cell
US20110014537A1 (en) * 2009-07-16 2011-01-20 Ford Motor Company Fuel cell
CN102201583A (zh) * 2011-04-22 2011-09-28 沈阳建筑大学 一种质子交换膜燃料电池流场结构
US9444105B2 (en) * 2011-11-04 2016-09-13 Fluidic, Inc. Immersible gaseous oxidant cathode for electrochemical cell system
JP5964986B2 (ja) * 2011-12-20 2016-08-03 ユナイテッド テクノロジーズ コーポレイションＵｎｉｔｅｄ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏｒｐｏｒａｔｉｏｎ 混合流を用いるフローバッテリ
US10693153B2 (en) 2015-10-28 2020-06-23 Morimura Sofc Technology Co., Ltd. Interconnector-electrochemical reaction unit cell composite body, electrochemical reaction cell stack, and method of manufacturing interconnector-electrochemical reaction unit cell composite body
TWI624989B (zh) * 2016-12-14 2018-05-21 財團法人工業技術研究院 雙極板、燃料電池及燃料電池組
CN106602100B (zh) * 2017-01-04 2023-05-12 沈阳建筑大学 新型燃料电池流场板
WO2018183047A1 (fr) * 2017-03-29 2018-10-04 Ballard Power Systems Inc. Plaque de champ d'écoulement pour une pile à combustible électrochimique
WO2019046724A1 (fr) 2017-09-01 2019-03-07 Itn Energy Systems, Inc. Cadres segmentés pour batteries à flux redox
US10497948B2 (en) * 2017-09-25 2019-12-03 GM Global Technology Operations LLC Fuel cell stack with asymmetrical bipolar plates
US11611115B2 (en) 2017-12-29 2023-03-21 Form Energy, Inc. Long life sealed alkaline secondary batteries
EP3830888A4 (fr) 2018-07-27 2022-06-08 Form Energy, Inc. Électrodes négatives pour cellules électrochimiques
US11056698B2 (en) 2018-08-02 2021-07-06 Raytheon Technologies Corporation Redox flow battery with electrolyte balancing and compatibility enabling features
CN109509896B (zh) * 2018-12-11 2020-10-02 中国科学院大连化学物理研究所 一种提高燃料电池双极板波浪形流道流场有效面积的流场结构
US12294086B2 (en) 2019-07-26 2025-05-06 Form Energy, Inc. Low cost metal electrodes
DE102020114066A1 (de) 2020-05-26 2021-12-02 Audi Aktiengesellschaft Bipolarplatte
US11271226B1 (en) 2020-12-11 2022-03-08 Raytheon Technologies Corporation Redox flow battery with improved efficiency
CN114824347B (zh) * 2022-03-31 2024-07-30 潍柴巴拉德氢能科技有限公司 一种双极板和燃料电池
CN115642270B (zh) * 2022-12-23 2023-04-07 南方科技大学 一种液流电池流场板和液流电池

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217955A (ja) * 1983-05-25 1984-12-08 Mitsubishi Electric Corp リン酸形燃料電池
US6071635A (en) * 1998-04-03 2000-06-06 Plug Power, L.L.C. Easily-formable fuel cell assembly fluid flow plate having conductivity and increased non-conductive material
WO2001004982A1 (fr) * 1999-07-08 2001-01-18 Loughborough University Innovations Limited Plaques de champ d'ecoulement
US20020081477A1 (en) * 2000-12-26 2002-06-27 Mclean Gerard F. Corrugated flow field plate assembly for a fuel cell

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB959557A (en) 1960-04-01 1964-06-03 Nat Res Dev Improvements in fuel cells
GB1151373A (en) 1965-05-18 1969-05-07 Energy Conversion Ltd Improvements in and relating to Electrochemical Cell Arrangements
US4444851A (en) * 1982-06-28 1984-04-24 Energy Research Corporation Fuel cell stack
JPH02278667A (ja) * 1989-04-18 1990-11-14 Fuji Electric Co Ltd 燃料電池スタックの修復方法
US4988583A (en) * 1989-08-30 1991-01-29 Her Majesty The Queen As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Novel fuel cell fluid flow field plate
US5108849A (en) * 1989-08-30 1992-04-28 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Fuel cell fluid flow field plate
EP0473540B1 (fr) * 1990-08-27 1996-10-16 Sulzer Innotec Ag ContrÔle de l'évacuation de la chaleur dans des piles à combustible à électrolyte solide
US5482680A (en) * 1992-10-09 1996-01-09 Ballard Power Systems, Inc. Electrochemical fuel cell assembly with integral selective oxidizer
US5300370A (en) * 1992-11-13 1994-04-05 Ballard Power Systems Inc. Laminated fluid flow field assembly for electrochemical fuel cells
IT1270878B (it) * 1993-04-30 1997-05-13 Permelec Spa Nora Migliorata cella elettrochimica utilizzante membrane a scambio ionico e piatti bipolari metallici
US5527363A (en) * 1993-12-10 1996-06-18 Ballard Power Systems Inc. Method of fabricating an embossed fluid flow field plate
RU2174728C2 (ru) * 1994-10-12 2001-10-10 Х Пауэр Корпорейшн Топливный элемент, использующий интегральную технологию пластин для распределения жидкости
JPH08287928A (ja) 1995-04-17 1996-11-01 Sanyo Electric Co Ltd 平板型燃料電池及びその製造方法
JPH09259904A (ja) * 1996-03-19 1997-10-03 Ishikawajima Harima Heavy Ind Co Ltd 燃料電池
US5776624A (en) * 1996-12-23 1998-07-07 General Motors Corporation Brazed bipolar plates for PEM fuel cells
RU2145751C1 (ru) * 1998-07-16 2000-02-20 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Топливный элемент
US6207312B1 (en) * 1998-09-18 2001-03-27 Energy Partners, L.C. Self-humidifying fuel cell
JP2000251907A (ja) * 1999-02-24 2000-09-14 Sanyo Electric Co Ltd 固体高分子型燃料電池
US6322919B1 (en) 1999-08-16 2001-11-27 Alliedsignal Inc. Fuel cell and bipolar plate for use with same
US6296964B1 (en) * 1999-12-23 2001-10-02 The Regents Of The University Of California Enhanced methanol utilization in direct methanol fuel cell
JP3702273B2 (ja) * 2000-09-18 2005-10-05 三菱重工業株式会社 固体高分子型燃料電池
US6503653B2 (en) * 2001-02-23 2003-01-07 General Motors Corporation Stamped bipolar plate for PEM fuel cell stack
GB2412784B (en) * 2002-01-18 2006-08-23 Intelligent Energy Ltd Fuel cell oxygen removal and pre-conditioning system
GB2387959B (en) * 2002-03-28 2005-02-09 Intelligent Energy Ltd Fuel cell compression assembly
GB2390738B (en) * 2002-07-09 2005-05-11 Intelligent Energy Ltd Fuel cell direct water injection
GB2396688B (en) * 2002-11-22 2006-06-28 Intelligent Energy Ltd Thermal energy management in electrochemical fuel cells
GB2401986B (en) * 2003-05-17 2005-11-09 Intelligent Energy Ltd Improvements in fuel utilisation in electrochemical fuel cells
GB2409763B (en) * 2003-12-31 2007-01-17 Intelligent Energy Ltd Water management in fuel cells
GB2413002B (en) * 2004-04-08 2006-12-06 Intelligent Energy Ltd Fuel cell gas distribution
GB2422716B (en) * 2005-01-26 2007-08-22 Intelligent Energy Ltd Multi-layer fuel cell diffuser
GB2422717B (en) * 2005-02-01 2007-11-14 Intelligent Energy Ltd Detachable fuel cell power unit for vehicle applications
GB2434845B (en) * 2006-02-01 2010-10-13 Intelligent Energy Ltd Variable compressibility gaskets

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217955A (ja) * 1983-05-25 1984-12-08 Mitsubishi Electric Corp リン酸形燃料電池
US6071635A (en) * 1998-04-03 2000-06-06 Plug Power, L.L.C. Easily-formable fuel cell assembly fluid flow plate having conductivity and increased non-conductive material
WO2001004982A1 (fr) * 1999-07-08 2001-01-18 Loughborough University Innovations Limited Plaques de champ d'ecoulement
US20020081477A1 (en) * 2000-12-26 2002-06-27 Mclean Gerard F. Corrugated flow field plate assembly for a fuel cell

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 089 (E - 309) 18 April 1985 (1985-04-18) *

Also Published As

Publication number Publication date
WO2003041199A2 (fr) 2003-05-15
GB0126688D0 (en) 2002-01-02
JP4700910B2 (ja) 2011-06-15
CA2471122C (fr) 2010-11-30
NO20033090D0 (no) 2003-07-07
BR0206313A (pt) 2004-02-10
GB2382455A (en) 2003-05-28
NO333667B1 (no) 2013-08-05
MXPA04004279A (es) 2005-05-16
NO20033090L (no) 2003-09-02
GB2382455B (en) 2004-10-13
US8304139B2 (en) 2012-11-06
EP1442491A2 (fr) 2004-08-04
EP1442491B1 (fr) 2017-08-16
RU2302689C2 (ru) 2007-07-10
US20050048351A1 (en) 2005-03-03
CA2471122A1 (fr) 2003-05-15
ZA200304912B (en) 2004-09-27
RU2004117094A (ru) 2005-11-20
JP2005509260A (ja) 2005-04-07

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